← Common issues
4-Speed Auto Harsh Shift
medium
In progressBook a workshop soon. You do not need to stop driving today.
If ignored: Left alone, the harsh shift can turn into a full overhaul.
Symptoms
- Jerky 1-2 upshift
- Delay engaging Drive
Cause
Ageing 4AT valve body and degraded fluid.
Solution
Fluid change helps; an overhaul is needed if the fault is severe.
4-Speed Auto Harsh Shift is a known consideration for the Proton Saga. Early diagnosis keeps repair costs low.
Community notes
Reported by owners on Malaysian automotive forums. Confirm with a qualified mechanic before undertaking repairs.